Mercury Racing HP525 EFI Bravo Sterndrive Series, Operation, Maintenance & Warranty Manual

Page: 128 / 147

COLD WEATHER OR EXTENDED STORAGE
118
eng
6. Connect the remote outboard fuel tank to the inlet of the
water separating fuel filter.
IMPORTANT: If the boat is out of the water, follow instructions
for running the engine on a flush device as found in the service
manual.
7. Start and run the engine at 1300 RPM for five minutes.
8. After the specified running time is complete, slowly return
the throttle to idle RPM and shut off the engine.
IMPORTANT: Operating a Mercury Marine engine with gasoline
containing alcohol creates unique problems as a result of long
storage periods common to a boat. Cars normally consume
alcohol‑blend fuels before they absorb enough moisture to
cause problems; however, boats often sit idle long enough for
phase separation to occur. In addition, alcohol can wash
protective oil films from internal components causing corrosion.
IMPORTANT: Do not run the engine's fuel system dry of this
fogging mixture in the 23 liter (6 U.S. gal) remote outboard fuel
tank.
NOTE: Refer to
Fuel Requirements
for additional information.
9. Close fuel shut off valve, if equipped.
10.Place drive unit in the full down position.
NOTICE
The universal joint bellows may develop a set when stored in
a raised or up position, causing the bellows to fail when
returned to service and allowing water to enter the boat. Store
the sterndrive in the full down position.